The process was demonstrated in 2003 and 2007. Different separations modules were tested for the recovery of Cs/Sr and Am/Cm products. In 2003, CCD-PEG and Cyanex 301 were tested. In 2007, FPEX and TALSPEAK were tested. In addition, in 2003, Tc was separated from uranium by selective stripping while in 2007 an ion exchange resin was used to make the process more amendable to an industrial application.

In 2003, the Np fraction was lower than the target value and a high lan­thanide content was observed in the Am/Cm product which deemed the Cyanex 301 separation module unacceptable. Process adjustments in NPEX resulted in an excellent recovery of Np in 2007. In addition, the replacement of the Cyanex 301 separation module with TALSPEAK resulted in excel­lent recovery of Am/Cm from the Ln fission products. Both CCD-PEG and the FPEX separations modules demonstrated high Cs/Sr recoveries. Results are given in Table 7.5.